The embodiment of the invention provides an electric drive system torque control method and device, and relates to the technical field of electric drive system control. The method comprises the steps that working condition parameters of vehicle driving wheels are obtained; under the condition that the working condition parameters meet the first working condition rule, it is judged that the driving wheel is emptied, and an emptied flag bit is output; according to the soaring flag bit, based on a first calculation rule, the expected motor torque of the vehicle and the motor torque at the soaring moment of the driving wheel are calculated; an expected torque following curve is generated, and the output torque of the motor is adjusted according to the expected torque following curve; the motor torque output of the new energy automobile under the specific working condition is optimized, and the problem of overload of an electric drive system caused by too large rotating speed change after driving wheels are emptied is solved.

    本申请实施例提供一种电驱系统扭矩控制方法及装置,涉及电驱系统控制技术领域,所述方法包括:获取车辆驱动轮的工况参数;在工况参数满足第一工况规则的情况下,判定驱动轮腾空,并输出腾空标志位;根据腾空标志位,基于第一计算规则,计算得到车辆期望电机扭矩和驱动轮腾空瞬间的电机扭矩;生成期望扭矩跟随曲线,并根据期望扭矩跟随曲线调节电机的输出扭矩;以优化新能源汽车在特定工况下的电机扭矩输出,以避免驱动轮腾空后转速变化过大而引起的电驱系统过载问题。


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    Title :

    Electric drive system torque control method and device


    Additional title:

    电驱系统扭矩控制方法及装置


    Contributors:
    FU CHAO (author) / SUN BO (author) / LIU YANCHAO (author) / YE KEYU (author) / HONG QI (author) / LI XINBEI (author) / LEE DONG-CHEOL (author)

    Publication date :

    2024-10-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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